crossover

Pyramid CR79G 3Way 6 Channel Electronic Crossover System
$41.99
6 Channel Electronic Crossover NetworkHigh Pass Settings: 2k, 4k, 6k Hz High Pass Slope Selector: 8 or 12 dB Bandpass Settings: High: 60, 120, 180 Hz & Flat Low: 2k, 4k, 6k & Flat Subwoofer Channel Input (Optional) Low Pass Settings: 60, 120, 180 Hz Subwoofer Slope Selector: 18 or 12 dB Subwoofer Phase Shift Gold Plated RCA Input and Output Jacks LED Power Indicators Remote Power On/Off S/N Ratio: >98dB THD: 0.005% @ 1kHz Dimensions: 4.75-Inch W x 7-Inch L x 1.5-Inch H

Clarion MCD360 2/3 Way Crossover
$199.99
This lil thing is great! I installed it just as i got it, even before i drove home from work, i'm only using on to round out my sub frequencies, and it does it very well. The low frequency boost, makes my lil sub a Pioneer TS-W1007D2|D4 sound great. I'm running boost at 35 Hz, love it. Never tried it with Mid and trebble but it works wonders for my bass.

PYLE PYX3X 3 Way Active Stereo Crossover Network
$70.99
This product uses 2nd order 12 dB/slopes which is not the industry standard. This information is not available on the website. The only way to find this out is to buy the unit and examine it. Hooking the unit up is not necessary to see that it won't work. The selectable crossover frequencies are useless and the technology so old and obsolete the unit has no practical application. I have returned the unit for a full refund which was promptly given without a problem. Tracking of the shipping was excellent. I recently ordered a DBX unit which uses 24dB/octave slopes...the industry standard for not that much more.

PYLE PLXR2 Electronic Subwoofer Crossover Network with12dB Bass Boost
$27.99
Electronic Low Pass Crossover NetworkLow Level RCA Inputs High Level Line Inputs RCA Line Outputs Lowpass Crossover 50 Hz/ 90 Hz/ 180 Hz Selectable Subwoofer Bass Boost 45 Hz/ 80 Hz/ 120 Hz Variable Gain Adjustment LED Power Indicator 12dB Bass Boost Mounting Hardware Included DC 12 Volt Dimensions: 3.6-InchW x 5-InchD x 1.10-InchH